Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Preparing nitrogen-containing organic compound
Reexamination Certificate
2004-11-22
2010-10-19
Afremova, Vera (Department: 1657)
Chemistry: molecular biology and microbiology
Micro-organism, tissue cell culture or enzyme using process...
Preparing nitrogen-containing organic compound
C435S170000, C435S252200, C435S260000, C435S822000
Reexamination Certificate
active
07816106
ABSTRACT:
A method of producing an amide from the corresponding nitrile comprising the following steps, i) providing a microorganism capable of producing a nitrile hydratase biocatalyst, ii) culturing the microorganism in a growth medium, iii) storing the microorganism, iv) contacting the nitrile by the microorganism in an aqueous medium and thereby converting the nitrile to the amide, wherein the microorganism is stored as none actively growing free cells in a storage medium that comprises water. The stored microorganism may be as whole microbial cells, this may be in the form of a cell paste recovered from a fermentation medium; an aqueous suspension of the microbial cells, prepared using a suitable suspending medium such as water, physiological saline solution, or a suitable buffer solution, such as phosphate or comprises the fermentation broth that contains components of the fermentation culture medium and products of microbial culture. The microorganism exhibits no significant loss of activity, for example if stored even for at least 2 days, especially 3 to 28 days.
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Armitage Yvonne
Kullar Jatinder Singh
Afremova Vera
Ciba Specialty Chemicals Water Treatments Ltd.
Loggins Shiela A.
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